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Memory Performance Is Related To Language Dominance As Determined By The Intracarotid Amobarbital Procedure, S. Kovac, G. Möddel, J. Reinholz, A. V. Alexopoulosa, T. Syed, S. U. Schuele, Tara T. Lineweaver, T. Loddenkemper
Memory Performance Is Related To Language Dominance As Determined By The Intracarotid Amobarbital Procedure, S. Kovac, G. Möddel, J. Reinholz, A. V. Alexopoulosa, T. Syed, S. U. Schuele, Tara T. Lineweaver, T. Loddenkemper
Scholarship and Professional Work - LAS
Objective
The goal of this study was to explore the relationship between language and memory lateralization in patients with epilepsy undergoing the intracarotid amobarbital procedure.
Methods
In 386 patients, language lateralization and memory lateralization as determined by laterality index (LI) were correlated with each other.
Results
Language lateralization and memory lateralization were positively correlated (r = 0.34, P < 0.01). Correlations differed depending on the presence and type of lesion (χ2 = 7.98, P < 0.05). LIs correlated significantly higher (z = 2.82, P < 0.05) in patients with cortical dysplasia (n = 41, r = 0.61, P < 0.01) compared with the group without lesions (n = 90, r = 0.16, P > 0.05), with patients with hippocampal sclerosis falling between these two groups. Both memory (P < 0.01) and language (P …
Atypical Language Lateralization In Epilepsy Patients, Gabriel Möddel, Tara T. Lineweaver, Stephan U. Schuele, Julia Reinholz, T. Loddenkemper
Atypical Language Lateralization In Epilepsy Patients, Gabriel Möddel, Tara T. Lineweaver, Stephan U. Schuele, Julia Reinholz, T. Loddenkemper
Scholarship and Professional Work - LAS
Purpose: To investigate whether atypical language dominance in epilepsy patients is related to localization and type of lesions.
Methods: Four hundred and forty-five epilepsy patients received bilateral Wada testing. Language was classified as left (L), right (R), bilateral-dependent (BD, speech arrest after left and right injections), or bilateral-independent (BI, no speech arrest after either injection). Groups were compared regarding handedness and magnetic resonance imaging (MRI) lesions. Lesions were classified as “early” (congenital), “late” neocortical (acquired after birth), and hippocampal sclerosis (HS).
Results: Of all patients, 78% were L, 6% R, 7% BD, and 9% BI. Right-handers with left lesions did …
Repeated Intracarotid Amobarbital Tests, T. Loddenkemper, H. H. Morris, Tara T. Lineweaver, C. Kellinghaus
Repeated Intracarotid Amobarbital Tests, T. Loddenkemper, H. H. Morris, Tara T. Lineweaver, C. Kellinghaus
Scholarship and Professional Work - LAS
Rationale:Our goal was to determine the frequency of repeated intracarotid amobarbital test (IAT) at our center and to estimate the retest reliability of the IAT for both language and memory lateralization.
Methods: A total of 1,249 consecutive IATs on 1,190 patients were retrospectively reviewed for repeat tests.
Results: In 4% of patients the IAT was repeated in order to deliver satisfactory information on either language or memory lateralization. Reasons for repetition included obtundation and inability to test for memory lateralization, inability to test for language lateralization, no hemiparesis during first test, no aphasia during first test, atypical vessel filling, …